GranQuartz 113M is a highly effective, yet easy to use maintenance product that cleans, polishes, and protects all polished stone and metal surfaces. Originally designed for industrial and institutional use, GranQuartz 113M now delivers professional power and results to your home! 113M cleans, polishes, and protects in one easy application, and leaves a beautiful shine that is streak and residue free. It is NSF approved for food preparation surfaces and is both non-flamable and biodegradable.